I'm fully understand that this is cheat, but think there must be next hearth magics:
A skill, which ressurect a dead animal, cost 10000 XP, will make it same quality that was before death with 10% brown bar.
This will solve next problems:
1. Players, who leave game and lost all animals will now have a reason for play, because starting with 10q suck.
2. Players, who was raided now will not lost every farming archievements as animals, and will have no reason to leave game after raid.